FARMER MAC GUARANTEED SECURITIES AND USDA SECURITIES - Schedule of On-Balance Sheet Securities (Details) - USD ($)	6 Months Ended	12 Months Ended
Jun. 30, 2024	Dec. 31, 2023
Trading:
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Accrued interest receivable (includes $21,711 and $16,764, respectively, related to consolidated trusts)	Accrued interest receivable (includes $21,711 and $16,764, respectively, related to consolidated trusts)
Farmer Mac Guaranteed Securities
Held-to-maturity:
Unpaid Principal Balance	$ 3,957,358,000	$ 4,242,867,000
Amortized cost	3,929,201,000	4,213,278,000
Allowance for losses	(133,000)	(209,000)
Unrealized Gains	8,961,000	4,783,000
Unrealized Losses	(32,240,000)	(40,257,000)
Fair Value	3,905,789,000	4,177,595,000
Available-for-sale:
Amortized cost	5,755,298,000
Fair Value	5,399,151,000
USDA Securities
Held-to-maturity:
Unpaid Principal Balance	2,309,465,000	2,331,093,000
Amortized cost	2,330,535,000	2,354,171,000
Allowance for losses	0	0
Unrealized Gains	255,000	417,000
Unrealized Losses	(335,230,000)	(319,783,000)
Fair Value	1,995,560,000	2,034,805,000
Trading:
Unpaid Principal Balance	1,032,000	1,236,000
Amortized Cost	1,084,000	1,300,000
Allowance for losses	0	0
Unrealized Gains	0	0
Unrealized Losses	(58,000)	(59,000)
Fair Value	1,026,000	$ 1,241,000
Trading securities, weighted-average yield		5.46%
Farmer Mac Guaranteed Securities and USDA Securities
Held-to-maturity:
Unpaid Principal Balance	6,266,823,000	$ 6,573,960,000
Amortized cost	6,259,736,000	6,567,449,000
Allowance for losses	(133,000)	(209,000)
Unrealized Gains	9,216,000	5,200,000
Unrealized Losses	(367,470,000)	(360,040,000)
Fair Value	5,901,349,000	6,212,400,000
Farmer Mac Guaranteed Securities
Held-to-maturity:
Amortized cost	3,929,068,000	4,213,069,000
Available-for-sale:
Unpaid Principal Balance	5,746,236,000	5,816,024,000
Amortized cost	5,755,298,000	5,825,433,000
Allowance for losses	(261,000)	(317,000)
Unrealized Gains	5,689,000	16,774,000
Unrealized Losses	(361,575,000)	(309,411,000)
Fair Value	5,399,151,000	5,532,479,000
Held-to-Maturity Securities \| Farmer Mac Guaranteed Securities
Held-to-maturity:
Unamortized Premium/(Discount)	(28,157,000)	(29,589,000)
Available-for-sale:
Unamortized Premium/(Discount)	(28,157,000)	(29,589,000)
Trading:
Unamortized Premium/(Discount)	(28,157,000)	(29,589,000)
Held-to-Maturity Securities \| USDA Securities
Held-to-maturity:
Unamortized Premium/(Discount)	21,070,000	23,078,000
Available-for-sale:
Unamortized Premium/(Discount)	21,070,000	23,078,000
Trading:
Unamortized Premium/(Discount)	21,070,000	23,078,000
Held-to-Maturity Securities \| Farmer Mac Guaranteed Securities and USDA Securities
Held-to-maturity:
Unamortized Premium/(Discount)	(7,087,000)	(6,511,000)
Available-for-sale:
Unamortized Premium/(Discount)	(7,087,000)	(6,511,000)
Trading:
Unamortized Premium/(Discount)	(7,087,000)	(6,511,000)
Available-for-Sale Securities \| Farmer Mac Guaranteed Securities
Held-to-maturity:
Unamortized Premium/(Discount)	9,062,000	9,409,000
Available-for-sale:
Unamortized Premium/(Discount)	9,062,000	9,409,000
Trading:
Unamortized Premium/(Discount)	9,062,000	9,409,000
Trading Securities \| USDA Securities
Held-to-maturity:
Unamortized Premium/(Discount)	52,000	64,000
Available-for-sale:
Unamortized Premium/(Discount)	52,000	64,000
Trading:
Unamortized Premium/(Discount)	52,000	64,000
Farmer Mac Guaranteed Securities \| Farmer Mac Guaranteed Securities
Available-for-sale:
Fair Value	9,300,000	9,800,000
Trading:
Derivative, notional amount	232,400,000	238,400,000
Farmer Mac Guaranteed Securities \| Farmer Mac Guaranteed Securities
Available-for-sale:
Unpaid Principal Balance	0	0
Amortized cost	9,062,000	9,409,000
Allowance for losses	0	0
Unrealized Gains	248,000	358,000
Unrealized Losses	0	0
Fair Value	9,310,000	9,767,000
Farmer Mac Guaranteed Securities \| Available-for-Sale Securities \| Farmer Mac Guaranteed Securities
Held-to-maturity:
Unamortized Premium/(Discount)	9,062,000	9,409,000
Available-for-sale:
Unamortized Premium/(Discount)	9,062,000	9,409,000
Trading:
Unamortized Premium/(Discount)	9,062,000	9,409,000
AgVantage
Trading:
Available-for-sale, accrued interest excluded	53,600,000	47,200,000
Held-to-maturity, accrued interest excluded	55,000,000	67,400,000
Trading securities, accrued interest excluded	28,690	42,000
AgVantage \| Farmer Mac Guaranteed Securities
Held-to-maturity:
Unpaid Principal Balance	3,908,405,000	4,206,324,000
Amortized cost	3,880,218,000	4,176,702,000
Allowance for losses	(133,000)	(209,000)
Unrealized Gains	8,851,000	4,676,000
Unrealized Losses	(31,300,000)	(39,451,000)
Fair Value	3,857,636,000	4,141,718,000
AgVantage \| Farmer Mac Guaranteed Securities
Available-for-sale:
Unpaid Principal Balance	5,746,236,000	5,816,024,000
Amortized cost	5,746,236,000	5,816,024,000
Allowance for losses	(261,000)	(317,000)
Unrealized Gains	5,441,000	16,416,000
Unrealized Losses	(361,575,000)	(309,411,000)
Fair Value	5,389,841,000	5,522,712,000
AgVantage \| Held-to-Maturity Securities \| Farmer Mac Guaranteed Securities
Held-to-maturity:
Unamortized Premium/(Discount)	(28,187,000)	(29,622,000)
Available-for-sale:
Unamortized Premium/(Discount)	(28,187,000)	(29,622,000)
Trading:
Unamortized Premium/(Discount)	(28,187,000)	(29,622,000)
AgVantage \| Available-for-Sale Securities \| Farmer Mac Guaranteed Securities
Held-to-maturity:
Unamortized Premium/(Discount)	0	0
Available-for-sale:
Unamortized Premium/(Discount)	0	0
Trading:
Unamortized Premium/(Discount)	0	0
Farmer Mac Guaranteed USDA Securities \| Farmer Mac Guaranteed Securities
Held-to-maturity:
Unpaid Principal Balance	48,953,000	36,543,000
Amortized cost	48,983,000	36,576,000
Allowance for losses	0	0
Unrealized Gains	110,000	107,000
Unrealized Losses	(940,000)	(806,000)
Fair Value	$ 48,153,000	35,877,000
Farmer Mac Guaranteed USDA Securities \| USDA Securities
Trading:
Trading securities, weighted-average yield	5.57%
Farmer Mac Guaranteed USDA Securities \| Held-to-Maturity Securities \| Farmer Mac Guaranteed Securities
Held-to-maturity:
Unamortized Premium/(Discount)	$ 30,000	33,000
Available-for-sale:
Unamortized Premium/(Discount)	30,000	33,000
Trading:
Unamortized Premium/(Discount)	$ 30,000	$ 33,000

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